diff --git a/AxibugEmuOnline.Client/Assets/Script/IEmuCore.cs b/AxibugEmuOnline.Client/Assets/Script/IEmuCore.cs
index a054acf..34c04d6 100644
--- a/AxibugEmuOnline.Client/Assets/Script/IEmuCore.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/IEmuCore.cs
@@ -1,5 +1,3 @@
-using System.Collections;
-using System.Collections.Generic;
 using UnityEngine;
 
 namespace AxibugEmuOnline.Client
@@ -17,4 +15,13 @@ namespace AxibugEmuOnline.Client
         void SetupScheme();
         void StartGame(RomFile romFile);
     }
+
+    public static class IEnumCoreTool
+    {
+        public static bool IsNull(this IEmuCore core)
+        {
+            if (core == null) return true;
+            return core.Equals(null);
+        }
+    }
 }
diff --git a/AxibugEmuOnline.Client/Assets/Script/Manager/AppEmu.cs b/AxibugEmuOnline.Client/Assets/Script/Manager/AppEmu.cs
index 4b59524..697bf68 100644
--- a/AxibugEmuOnline.Client/Assets/Script/Manager/AppEmu.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/Manager/AppEmu.cs
@@ -1,17 +1,47 @@
 using AxibugEmuOnline.Client.ClientCore;
+using AxibugEmuOnline.Client.Event;
 using MyNes.Core;
+using System;
 using UnityEngine;
 
 namespace AxibugEmuOnline.Client.Manager
 {
     public class AppEmu
     {
-        private GameObject m_emuInstance;
+        /// <summary>
+        /// unity的c#实现有bug,以接口类型保存的monobehaviour引用,!=和==运算符没有调用到monobehaviour重写过的运算符
+        /// 但是Equals方法可以,所以,这个接口判断为空请使用Equals
+        /// </summary>
         private IEmuCore m_emuCore;
 
+        public AppEmu()
+        {
+            Eventer.Instance.RegisterEvent(EEvent.OnMineJoinRoom, OnSelfJoinRoom);
+        }
+
+        private void OnSelfJoinRoom()
+        {
+            //如果当前正在游戏中,就先结束游戏
+            if (!m_emuCore.IsNull()) StopGame();
+
+            var roomInfo = App.roomMgr.mineRoomMiniInfo;
+            roomInfo.FetchRomFileInRoomInfo(EnumPlatform.NES, (room, romFile) =>
+            {
+                if (!romFile.RomReady) //这个rom并没有下载,所以取消进入房间
+                {
+                    App.roomMgr.SendLeavnRoom();
+                }
+                else
+                {
+                    BeginGame(romFile);
+                }
+            });
+        }
+
+
         public void BeginGame(RomFile romFile)
         {
-            if (m_emuInstance != null) return;
+            if (!m_emuCore.Equals(null)) return;
 
             switch (romFile.Platform)
             {
@@ -20,8 +50,6 @@ namespace AxibugEmuOnline.Client.Manager
                     break;
             }
 
-            m_emuInstance = m_emuCore.gameObject;
-
             m_emuCore.StartGame(romFile);
             LaunchUI.Instance.HideMainMenu();
             InGameUI.Instance.Show(romFile, m_emuCore);
@@ -31,9 +59,9 @@ namespace AxibugEmuOnline.Client.Manager
 
         public void StopGame()
         {
-            if (m_emuInstance == null) return;
-            GameObject.Destroy(m_emuInstance);
-            m_emuInstance = null;
+            if (m_emuCore.IsNull()) return;
+            GameObject.Destroy(m_emuCore.gameObject);
+            m_emuCore = null;
 
             InGameUI.Instance.Hide();
             LaunchUI.Instance.ShowMainMenu();
diff --git a/AxibugEmuOnline.Client/Assets/Script/Manager/RomLib/RomFile.cs b/AxibugEmuOnline.Client/Assets/Script/Manager/RomLib/RomFile.cs
index a4eb71a..0508534 100644
--- a/AxibugEmuOnline.Client/Assets/Script/Manager/RomLib/RomFile.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/Manager/RomLib/RomFile.cs
@@ -48,7 +48,7 @@ namespace AxibugEmuOnline.Client
         public int Page { get; private set; }
         public string Hash => webData != null ? webData.hash : string.Empty;
 
-        public event Action OnDownloadOver;
+        public event Action<RomFile> OnDownloadOver;
         public event Action OnInfoFilled;
 
         public RomFile(EnumPlatform platform, int index, int insidePage)
@@ -73,7 +73,7 @@ namespace AxibugEmuOnline.Client
                     File.WriteAllBytes(LocalFilePath, bytes);
                     hasLocalFile = true;
                 }
-                OnDownloadOver?.Invoke();
+                OnDownloadOver?.Invoke(this);
             }));
         }
 
@@ -115,13 +115,16 @@ namespace AxibugEmuOnline.Client
             downloadRequest = UnityWebRequest.Get($"{App.httpAPI.WebHost}/{webData.url}");
             yield return downloadRequest.SendWebRequest();
 
-            if (downloadRequest.result != UnityWebRequest.Result.Success)
+            var request = downloadRequest;
+            downloadRequest = null;
+
+            if (request.result != UnityWebRequest.Result.Success)
             {
                 callback(null);
             }
             else
             {
-                callback(downloadRequest.downloadHandler.data);
+                callback(request.downloadHandler.data);
             }
         }
 
diff --git a/AxibugEmuOnline.Client/Assets/Script/NesEmulator/NesEmulator.cs b/AxibugEmuOnline.Client/Assets/Script/NesEmulator/NesEmulator.cs
index 4061b1c..69d64fe 100644
--- a/AxibugEmuOnline.Client/Assets/Script/NesEmulator/NesEmulator.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/NesEmulator/NesEmulator.cs
@@ -69,7 +69,6 @@ namespace AxibugEmuOnline.Client
             }
         }
 
-
         public void Pause()
         {
             m_bPause = true;
diff --git a/AxibugEmuOnline.Client/Assets/Script/UI/InGameUI/StepPerformer.cs b/AxibugEmuOnline.Client/Assets/Script/UI/InGameUI/StepPerformer.cs
index 9564601..1b3f342 100644
--- a/AxibugEmuOnline.Client/Assets/Script/UI/InGameUI/StepPerformer.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/UI/InGameUI/StepPerformer.cs
@@ -18,7 +18,6 @@ namespace AxibugEmuOnline.Client
         {
             m_step = step;
 
-
             switch (m_step)
             {
                 //等待主机上报快照
diff --git a/AxibugEmuOnline.Client/Assets/Script/UI/RoomItem.cs b/AxibugEmuOnline.Client/Assets/Script/UI/RoomItem.cs
index 56016ee..6db698c 100644
--- a/AxibugEmuOnline.Client/Assets/Script/UI/RoomItem.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/UI/RoomItem.cs
@@ -2,6 +2,7 @@ using AxibugEmuOnline.Client.ClientCore;
 using AxibugEmuOnline.Client.Event;
 using AxibugEmuOnline.Client.UI;
 using AxibugProtobuf;
+using System;
 using UnityEngine;
 using UnityEngine.UI;
 
@@ -27,22 +28,15 @@ namespace AxibugEmuOnline.Client
         {
             base.Awake();
 
-            Eventer.Instance.RegisterEvent<int>(EEvent.OnRoomListSingleUpdate, OnRoomSingleUpdate);
+            Eventer.Instance.RegisterEvent<int>(EEvent.OnRoomListSingleUpdate, OnRoomSignelUpdate);
         }
 
-        protected override void OnDestroy()
+        private void OnRoomSignelUpdate(int roomID)
         {
-            Eventer.Instance.UnregisterEvent<int>(EEvent.OnRoomListSingleUpdate, OnRoomSingleUpdate);
-        }
+            if (this.roomID != roomID) return;
 
-        private void OnRoomSingleUpdate(int roomId)
-        {
-            if (roomId != roomID) return;
-
-            if (App.roomMgr.GetRoomListMiniInfo(roomId, out var roomInfo))
-            {
+            if (App.roomMgr.GetRoomListMiniInfo(roomID, out var roomInfo))
                 UpdateUI(roomInfo);
-            }
         }
 
         public void SetData(object data)
@@ -53,6 +47,20 @@ namespace AxibugEmuOnline.Client
             UpdateUI(roomInfo);
         }
 
+        public override bool OnEnterItem()
+        {
+            if (!m_romFile.RomReady)
+            {
+                m_romFile.BeginDownload();
+                return false;
+            }
+            else
+            {
+                App.roomMgr.SendJoinRoom(roomID, 1);
+                return true;
+            }
+        }
+
         private void UpdateUI(Protobuf_Room_MiniInfo roomInfo)
         {
             var hostNick = roomInfo.GetHostNickName();
@@ -60,12 +68,12 @@ namespace AxibugEmuOnline.Client
             SetBaseInfo(string.Empty, $"<b>{hostNick}</b>�ķ��� - {cur}/{max}");
             SetIcon(null);
 
-            roomInfo.FetchRomFileInRoomInfo(EnumPlatform.NES, (romFile) =>
+            roomInfo.FetchRomFileInRoomInfo(EnumPlatform.NES, (room, romFile) =>
             {
-                m_romFile = romFile;
+                if (room.RoomID != roomID) return;
 
-                if (romFile.ID == roomInfo.GameRomID)
-                    Txt.text = romFile.Alias;
+                m_romFile = romFile;
+                Txt.text = romFile.Alias;
 
                 UpdateRomInfoView();
                 App.CacheMgr.GetSpriteCache(romFile.ImageURL, OnGetRomImage);
diff --git a/AxibugEmuOnline.Client/Assets/Script/UI/RoomListMenuItem.cs b/AxibugEmuOnline.Client/Assets/Script/UI/RoomListMenuItem.cs
index 4514913..48a2fb3 100644
--- a/AxibugEmuOnline.Client/Assets/Script/UI/RoomListMenuItem.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/UI/RoomListMenuItem.cs
@@ -12,6 +12,7 @@ namespace AxibugEmuOnline.Client
         {
             Eventer.Instance.RegisterEvent<int>(EEvent.OnRoomListAllUpdate, OnRoomListUpdateAll);
             Eventer.Instance.RegisterEvent<int>(EEvent.OnRoomListSingleClose, OnRoomClosed);
+            Eventer.Instance.RegisterEvent<int>(EEvent.OnRoomListSingleAdd, OnRoomSingleAdd);
             base.Awake();
         }
 
@@ -19,6 +20,7 @@ namespace AxibugEmuOnline.Client
         protected override void OnDestroy()
         {
             Eventer.Instance.UnregisterEvent<int>(EEvent.OnRoomListAllUpdate, OnRoomListUpdateAll);
+            Eventer.Instance.UnregisterEvent<int>(EEvent.OnRoomListSingleUpdate, OnRoomSingleAdd);
             Eventer.Instance.UnregisterEvent<int>(EEvent.OnRoomListSingleClose, OnRoomClosed);
         }
 
@@ -36,6 +38,14 @@ namespace AxibugEmuOnline.Client
             return res;
         }
 
+        private void OnRoomSingleAdd(int obj)
+        {
+            if (m_entering)
+            {
+                RefreshUI();
+            }
+        }
+
         private void OnRoomListUpdateAll(int obj)
         {
             if (m_entering)
diff --git a/AxibugEmuOnline.Client/Assets/Script/UI/VirtualSubMenuItem.cs b/AxibugEmuOnline.Client/Assets/Script/UI/VirtualSubMenuItem.cs
index 9721a82..859d9de 100644
--- a/AxibugEmuOnline.Client/Assets/Script/UI/VirtualSubMenuItem.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/UI/VirtualSubMenuItem.cs
@@ -20,7 +20,7 @@ namespace AxibugEmuOnline.Client
             base.Awake();
 
             RomGroupRoot.gameObject.SetActive(false);
-            RomGroupRoot.alpha = 0;
+            RomGroupRoot.alpha = 0;           
         }
 
         public override void SetSelectState(bool selected)
@@ -58,7 +58,7 @@ namespace AxibugEmuOnline.Client
             thirdMenuGroup.itemGroup.Clear();
 
             RefreshUI();
-
+            
             if (SubMenuItemGroup != null) SubMenuItemGroup.SetSelect(true);
 
             return true;
diff --git a/AxibugEmuOnline.Client/Assets/Script/Utility.cs b/AxibugEmuOnline.Client/Assets/Script/Utility.cs
index 58bc19b..973471a 100644
--- a/AxibugEmuOnline.Client/Assets/Script/Utility.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/Utility.cs
@@ -38,11 +38,11 @@ namespace AxibugEmuOnline.Client
         }
 
         private static Dictionary<int, RomFile> s_RomFileCahcesInRoomInfo = new Dictionary<int, RomFile>();
-        public static void FetchRomFileInRoomInfo(this Protobuf_Room_MiniInfo roomInfo, EnumPlatform platform, Action<RomFile> callback)
+        public static void FetchRomFileInRoomInfo(this Protobuf_Room_MiniInfo roomInfo, EnumPlatform platform, Action<Protobuf_Room_MiniInfo, RomFile> callback)
         {
             if (s_RomFileCahcesInRoomInfo.TryGetValue(roomInfo.GameRomID, out RomFile romFile))
             {
-                callback.Invoke(romFile);
+                callback.Invoke(roomInfo,romFile);
                 return;
             }
             switch (platform)
@@ -52,9 +52,9 @@ namespace AxibugEmuOnline.Client
                     {
                         RomFile romFile = new RomFile(EnumPlatform.NES, 0, 0);
                         romFile.SetWebData(romWebData);
-                        callback.Invoke(romFile);
-
                         s_RomFileCahcesInRoomInfo[roomInfo.GameRomID] = romFile;
+
+                        callback.Invoke(roomInfo,romFile);
                     }));
                     break;
             }